It's the night before Halloween, the night before SABRINA's sixteenth birthday, the night of the blood-moon and the lunar eclipse, and SABRINA has made her decision: She will go into the woods of Greendale as a half-witch and emerge... on the other side of a frightful ritual... as a fully baptized member of the Church of Night. But there will be a cost, and his name is HARVEY. And unbeknownst to SABRINA and her aunts, there is a serpent in the garden, their great enemy MADAM SATAN, conspiring against them.